矩形中心距离的再探索

GeoGebra 命令及参数

1. Point(yAxis) → A
2. Circle(A, r) → c
3. Intersect(c, xAxis, 2) → B
4. Rotate(B, a, A) → B'
5. Angle(B, A, B') → α
6. Segment(A, B') → f
7. Segment(C, D) → g
8. Segment(D, E) → h
9. Segment(E, B') → i
10. Segment(B', C) → j
11. Segment(F, G) → k
12. Segment(H, G) → m
13. Segment(G, B') → n
14. Segment(A, I) → p
15. Segment(I, H) → q
16. Segment(A, F) → s
17. Segment(B', F) → t
18. Segment(J, F) → b
19. Angle(I, A, F) → β
20. Angle(J, F, B') → γ
21. Angle(B', F, A) → δ